Spring bed-bottom



(Model.)

` .1.. H. HOOD 8a G. H. FOX.

SPRING BBD BOTTOM. No. 254,652. Patented Mar. 7,1882. K-

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UNITED STATES PATENT OFFICEo LODNER H. HOOD AND GEORGE H. FOX, OF GRANDHAVEN, MICHIGAN.

SPRING BED-BOTTOM.

SPECIFICATION forming part -of Letters Patent No. 254,652, dated March7, 1882.

Application filed January 30, 1882.

To all whom it may concern:

Be it known that we, LODNER H. HOOD and GEO. H. FOX, of Grand Haven, inthe county of Ottawa and State of Michigan, have invented certain newand useful Improvements in Spring Bed-Bottoms; and we do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in .the art to which itpertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specication.

Our invention relates to an improvementin spring bed -bottomsg and itconsists in the combination ot' a suitable frame, a woven fabric,suitable supporting-springs, and cross bar or slat upon which thesprings rest, springs which extend the full length of the bed, and whichbear upward against the supportingslat, and a suitable mechanism bywhich the tension of the springs can be increased, as will be more`fully described hereinafter.

The object of our invention is to produce a light, cheap, and simplebed-bottom, in which both the woven fabric upon which the mattress restsand the longitudinal springs can be loosened or tightened at pleasure.

Figure 1 is a side elevation ot'ourinvention. Fig. 2 is an inverted viewof the same.

A represents the side supporting-bars, and B O the two end pieces,between which the ends of the woven fabric D and the longitudinalsprings F have their ends fastened. Near the center of the frame issecured the crossbar G, upon which the coiled springs H are placed, andthese coiled springs support the center of the Woven fabric, as shown.There may be any desired number ot' these coiled springs, and for each-coiled spring there will be preferably a longitudinal spiral spring.

In order to make the tension of the woven (Model.)

fabric and thelongitudinal springs adjustable, a casting orplate, O, isapplied to two ofthe ends ofthe side supporting-pieces,and thesecastings have their inner ends turned upward, as shown in Fig. l.Through the turned-up end of each casting is passed a set-screw, P,which bears against one of the pieces between which the ends of thefabric and the spiral springs are held for the purpose of forcing thepieces outward, or allowing them 4to be drawn inward by the fabric, asmay be desired. Where the screws are forced through the casting, so asto force the two pieces B Coutward, the tension ofthe fabric and springswillbe increased, and where the pieces are allowed to bear against thecasting the tension will be decreased. The two clamping-pieces B O, atthe other end of the side supporti iig-bars, A, are secured rigidlytogether and then fastened rigidly to the side bars, as shown.

A bed-bottom constructed as here shown and described will be very strongand durable and very elastic.

Having thus described our invention, we claim- The combination of theside supporting-bars, A, the clampingpieces B C, the cross-bar, thespiral springs placed upon the bar, the longitudinal springs, thecastings which areapplied to the ends of the side supporting-bars, andthe set screws, whereby the tension of the fabric and longitudinalsprings can be increased or decreased at will.

In testimony whereof we attix our signatures in presence of twowitnesses.

LODNER H. HOOD. GEORGE H. FOX.

Witnesses: v

OHAs. T. PAGELsoN, DERK PIsH.

